[lwip-users] PPP

[ramash]

Dear All,
    Our project team is trying to send data using point to point protocol,We
are using PPP 2.4 version with LWIP.We are able to establish a PPP link  and
got IP address from ISP using our own drivers.After this we have the
following issues.

1.We are unable to pass the  IP packets ,since there are more files such as
tcp.c,ip.c,tcpip.c,udp.c..etc.Through which file we have to send data that
is IP packets.
2.We decided to use sockets to send packets,but it does not returns a socket
id like  windows socket API.
3.we are confused to decide a code flow   to send tcp/ip packets. also in a
file called ip.c the function  ip_init is empty but defined, a comment is
mentioned inside the function   "/* no initializations as of yet */".

kindly reply us to find a correct path.
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